System and method for dual-coding for dual-hops channels

Patent metadata

Field	Value
Publication number	US-2019028232-A1
Application number	US-201716079898-A
Country	US
Kind code	A1
Filing date	Mar 17, 2017
Priority date	Mar 18, 2016
Publication date	Jan 24, 2019
Grant date	—

Abstract

An origination device (e.g., a base station) encodes first and second data packets according to a first set of encoding parameters corresponding to channel conditions associated with a first communication link between a signal forwarding device and a destination device. The resulting first and second single-encoded data packets contain the same data. The origination device combines the first and second single-encoded data packets to generate a single-encoded data block. The origination device encodes the single-encoded data block, according to a second set of encoding parameters corresponding to channel conditions associated with a second communication link between the origination device and the signal forwarding device, to generate a dual-encoded data block. The dual-encoded data block is transmitted to the signal forwarding device.

First claim

1 . A method comprising:
encoding a first data packet and a second data packet, according to a first set of encoding parameters corresponding to channel conditions associated with a first communication link between a signal forwarding device and a destination device, to generate first and second single-encoded data packets, wherein the first and second single-encoded data packets contain redundant encoded data; and encoding the first and second single-encoded data packets, according to a second set of encoding parameters corresponding to channel conditions associated with a second communication link between an origination device and the signal forwarding device, to generate a dual-encoded data block.

2 . The method of claim 1 , wherein the first set of encoding parameters comprises a first encoding technique, and
wherein the second set of encoding parameters comprises a second encoding technique.

3 . The method of claim 1 , wherein the first set of encoding parameters comprises a first encoding rate, and
wherein the second set of encoding parameters comprises a second encoding rate.

4 . The method of claim 1 , further comprising:
transmitting the dual-encoded data block to the signal forwarding device.

5 . The method of claim 4 , further comprising:
receiving channel feedback regarding the channel conditions associated with the first communication link between the signal forwarding device and the destination device.

6 . The method of claim 5 , further comprising:
modifying the first set of encoding parameters based on the received channel feedback regarding the channel conditions associated with the first communication link between the signal forwarding device and the destination device.

7 . The method of claim 4 , further comprising:
receiving channel feedback regarding the channel conditions associated with the second communication link between the origination device and the signal forwarding device.

8 . The method of claim 7 , further comprising:
modifying the second set of encoding parameters based on the received channel feedback regarding the channel conditions associated with the second communication link between the origination device and the signal forwarding device.

9 . The method of claim 4 , further comprising:
receiving the dual-encoded data block at the signal forwarding device; decoding, by the signal forwarding device, the dual-encoded data block, using decoding parameters that correspond to the second set of encoding parameters, which yields the first and second single-encoded data packets that are encoded according to the first set of encoding parameters; and transmitting, by the signal forwarding device, the first single-encoded data packet to the destination device.

10 . The method of claim 9 , further comprising:
receiving, at the signal forwarding device, a request for retransmission of the first single-encoded data packet; and transmitting, by the signal forwarding device, the second single-encoded data packet to the destination device, in response to the request for retransmission.

11 . The method of claim 1 , further comprising:
combining the first and second single-encoded data packets to generate a single-encoded data block before encoding according to the second set of encoding parameters to generate the dual-encoded data block.

12 . A wireless communication system comprising:
an origination device comprising:
circuitry configured to:
encode a first data packet and a second data packet, according to a first set of encoding parameters corresponding to channel conditions associated with a first communication link between a signal forwarding device and a destination device, to generate first and second single-encoded data packets, wherein the first and second single-encoded data packets contain redundant encoded data, and
encode the first and second single-encoded data packets, according to a second set of encoding parameters corresponding to channel conditions associated with a second communication link between the origination device and the signal forwarding device, to generate a dual-encoded data block, and
a transmitter configured to transmit the dual-encoded data block;

a signal forwarding device comprising:
a receiver configured to receive the dual-encoded data block,
circuitry configured to decode the dual-encoded data block, using decoding parameters that correspond to the second set of encoding parameters, which yields the first and second single-encoded data packets that are encoded according to the first set of encoding parameters, and
a transmitter configured to transmit the first single-encoded data packet to the destination device; and
a destination device comprising:
a receiver configured to receive the first single-encoded data packet, and
circuitry configured to decode, using decoding parameters that correspond to the first set of encoding parameters, the first single-encoded data packet.

13 . The wireless communication system of claim 12 , wherein the first set of encoding parameters comprises a first encoding technique, and
wherein the second set of encoding parameters comprises a second encoding technique.

14 . The wireless communication system of claim 12 , wherein the first set of encoding parameters comprises a first encoding rate, and
wherein the second set of encoding parameters comprises a second encoding rate.

15 . The wireless communication system of claim 12 , wherein the origination device further comprises:
a receiver configured to receive channel feedback regarding the channel conditions associated with at least one of the first communication link and the second communication link.

16 . The wireless communication system of claim 15 , wherein the origination device further comprises:
a controller configured to modify at least one of the first set of encoding parameters and the second set of encoding parameters, based on the received channel feedback.

17 . The wireless communication system of claim 12 , wherein the destination device further comprises:
a transmitter configured to transmit, to the signal forwarding device, a request for retransmission of the first single-encoded data packet, if the destination device is unable to decode the first single-encoded data packet.

18 . The wireless communication system of claim 17 , wherein the transmitter of the signal forwarding device is further configured to transmit the second single-encoded data packet to the destination device, in response to the request for retransmission.

19 . The wireless communication system of claim 12 , wherein the circuitry of the origination device is further configured to combine the first and second single-encoded data packets to generate a single-encoded data block before encoding according to the second set of encoding parameters to generate the dual-encoded data block.

Assignees

• Kyocera Corp

Inventors

• Kalhan Amit
• Chang Henry

Classifications

• H04L1/1825

  Adaptation of specific ARQ protocol parameters according to transmission conditions · CPC title

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L1/1812 Primary

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04L1/0061

  Error detection codes · CPC title

• H04L2001/0097

  Relays · CPC title